Part 1 of 2
In Safari >> Setting >> AutoFill tab
As per the setting, as they appear in below image , and all options are Checked Marked ( Enabled )
I have zero Essie with the Passwords Auto Filling on any Saved Password Site including Government Sites, Investment Account Sites, Bank and Credit Card Sites

Part 2 of 2
Q - " 24in.2022 iMac, Ventura 13.0. "
A - The current Stable Version of Ventura is presently version 13.2.1
It is suggested the user update Ventura which brings many Bug and Security Fixes.
If not mistaken, also includes a Newer Version of Safari this is missing in version 13.0
The links below as it relates to keeping the computer up to date
Keep your Mac up to date - Apple Support (CA)
About the security content of macOS Ventura 13.2.1 - Apple Support (CA)